Specification :

OTDR, Aitelong OTDR:
Wavelength: 1310± 20/ 1550± 20nm
Max. dynamic range: 35/ 34dB
Event dead zone: 1.6/ 1.8m
Attenuation dead zone: 4.5/ 5m
Distance: 0.8km, 1.6km, 3.2km, 6.4km, 12.8km, 25.6km, 51.2km, 102.4km, 204.8km, 409.6km
Pulse width: 8ns, 16ns, 40ns, 80ns, 160ns, 320ns, 640ns, 1280ns, 2560ns, 10240ns, 20480ns
Linearity : ± 0.03dB/ dB
Loss threshold: 0.01dB
Loss resolution: 0.001dB
Sampling resolution: 0.025 to 0.03m
Sampling points: up to 128000
Distance uncertainty: ± ( 0.75+ 0.0025% x distance) m
Measure time: user-defined( 180min max.)
Typical real-time refresh: guaranteed: f0.4s typical: f0.3s
Stable source output power: -8dBm
Display: touchscreen, color, 640x480 TFT203mm( 8in)
Storage: compact flash cards
Batteries: rechargeable Li-Ion 6600mAh 8h of operation
Power supply: AC/ DC adapter. Input: 100-240VAC, 50-60Hz,  1A; output: 19VDC,  3A
Operating temperature: -5 to 50 ( 23 to 122 )
Storage temperature: -40 to 70 ( -40 to 158 )
Relative humidity: 0% to 95% ( non-condensing)
Size( HxWxD) : 300mm x 205mm x 95mm